Osaka Gas Co., Ltd. (大阪瓦斯株式会社,Ōsaka Gasu Kabushiki-gaisha), commonly written as 大阪ガス, is a Japanesegas company based in Osaka, Japan. It supplies gas to the Kansai region, especially the Keihanshin area.

Osaka Gas is also engaged in upstream, midstream and downstream energy projects throughout the world, including LNG terminals, pipelines and independent power projects, particularly in Southeast Asia, Australia and North America.[1]

Osaka Gas began operations in 1897 in Nishi-ku, Osaka, on a site now occupied by the Dome City Gas Building near the Kyocera Dome. It expanded to Wakayama in 1911. Following the end of World War II, in October 1945, Osaka Gas merged with 14 other gas companies in the Kansai region, expanding its footprint to cover Kobe and Kyoto.

Osaka Gas entered its first overseas upstream LNG project in Brunei in 1972, followed by investments in Indonesia in 1977 and Australia in 1989.[4]